A sample of a radioactive isotope that had an initial mass of 200 mg in the year 2000 has been decaying exponentially since. A measurement in the year 2004 found that the sample's mass had decayed to 70 mg. What would be the expected mass of the sample in 2006, to the nearest whole number?

step-by-step explanation: the answer is 27. first multiply .32 by 25 which equals 8. then add 8 to 25 which gives you 33. then you subtract that from 6 since she gave 6 to her brother.

,, add !

explanation:

infrared radiation has wavelength in the range between 700 nm and 1 mm. lets' convert these values into scientific notation, keeping in mind that:

let's start from the lower value, we have:

(we moved the dot two places to the left, so we increased the exponent by 2 units, from -9 to -7)

the higher value is:

so, the range of wavelength of infrared radiation is: